Sentences:  On account of his ____ course he had given his parents
many a problem to ____.  He ____ the powder in a cupful of water and ____
to give it to the patient.  This ____ of the difficulty did not win the
____ approval of his employer.  The obstacles were many, but he was ____.

Spec(t), spic(e) (look):  (1) spectator, spectacle, suspect, aspect, prospect, expect, respectable, disrespect, inspection, speculate, special, especial, species, specify, specimen, spice, suspicion, conspicuous, despise, despite, spite; (2) specter, spectrum, spectroscope, prospector, prospectus, introspection, retrospect, circumspectly, conspectus, perspective, specie, specification, specious, despicable, auspices, perspicacity, frontispiece, respite.

Sentences:  His ____ was conducted in such a manner as to show the
utmost ____.  In ____ she noticed an odor of ____.  From his ____ you would
have taken him to be a ____ of wild animal.  The ____ was better than we
had ____ it to be.  Though you have no ____ fondness for children, you will
enjoy the ____ of them playing together.  The ____ did not ____ what
underhand tactics some of the players were resorting to.  In ____ of all
this, we made a ____ showing.  The ____ is one you cannot ____.  ____ this
____ of matters, she did not ____ the cause of her ____, but let him ____
what it might be.

Spire, spirit (breathe, breath):  (1 and 2 combined) spirit, spiritual, perspire, transpire, respire, aspire, conspiracy, inspiration, expiration, esprit de corps.

Sentences:  At the ____ of a few days it ____ that a ____ had
actually been formed.  The ____ of the division was such that every man
____ to meet the enemy forthwith.  He was a man of much ____ and marked
powers of ____.  As he lay there, he merely ____ and ____; he had no
thought whatsoever of things ____.

Sta, sti(t), sist (stand):  (1) stand, stage, statue, stall, stationary, state, reinstate, station, forestall, instant, instance, distance, constant, withstand, understand, circumstance, estate, establish, substance, obstacle, obstinate, destiny, destination, destitute, substitute, superstition, desist, persist, resist, insist, assist, exist, consistent, stead, rest, restore, restaurant, contrast; (2) stature, statute, stadium, stability, instable, static, statistics, ecstasy, stamen, stamina, standard, stanza, stanchion, capstan, extant, constabulary, apostate, transubstantiation, status quo, armistice, solstice, interstice, institute, restitution, constituent, subsistence, pre-existence, presto.

Sentences:  The ____ of the motion was that the student who had been
expelled should be ____.  He ____ in his ____ resolution to go on the ____. 
She could not ____ the pleas of ____ people.  He ____ her to alight at the
____.  In an ____ you shall ____ what the ____ was that drove me to
tempt ____ thus.  We had gone but a little ____ when I perceived by the
hungry working of his jaws that his ____ was the ____ in the next block. 
No ____ could cause him to ____.  She was ____ in a ____ at the bazaar.

Stead (place):  (1 and 2 combined) stead, steadfast, instead, homestead, farmstead, roadstead, bestead.